Fastener head



FIG. 1 is a perspective view of the first embodiment of a fastener head, showing the new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof; and

FIG. 4 is a bottom view thereof.

FIG. 5 is a perspective view of the second embodiment of a fastener head, showing the new design;

FIG. 6 is a side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the fastener head that form no part of the claimed design. 

CLAIM The ornamental design for the fastener head, as shown and described. 